Tank anchor for welded tanks



July l1, 1933. C. FQLMSBEE 1,917,931

TANK ANCHOR FOR WELDED TANKS Filed Sept. 21, 1931 /NvE/vrofe Clyde H.Foimsbee )wrom/EY Patented July 11,*.1933

UNITED s'laiiis i er fr oLYnn H. ronmsnnn, orv cnaivronn, Anew assreivonTo #american Ann roUnnnY COMPANY, or new Yoan, 1v. Y., A cannoni-irrenoir-naw JERSEY TANK ANCHOR EGR VJ'ELDED TANKS Appiicstion mea september2i, i931. sensi No. esteraV This invention relates generally to car tankanchors, and particularly -to the provision of means for anchoringwelded tanks to the underfraine where a portion -of the anchor Iiswelded to or integral with the shell of the tank. y l

The present invention contemplates the vuse of an anchoring means a;portion of which .is welded tothe shell of the tan-k and the otherportion is riveted or otherwise suitably secured'both tothe tank portionof said means and l'to the underfraineof the car.

Where anchoring Vmeans riveted to car tanks have been used thepossibility of leakage around --thes 4rivets Vhas always been present.jectionable where the contents of the tanks are such as to ,producecorrosionof the rivets. Furthermore, whenthe tanks are used for carryingcorrosive vfluids, protective caps sealed to the inside ofthe tank shellfor covering the rivet heads are required, and a prescribed test fortightness is ralso necessary. This involves `considerable time andexpense.V g y One :of the objects, therefore, of the invention is toyprovide an anchoring means fora car tan-k which is integral with orwelded to the shell of the tank and thereby eliminating the abo-vementioned objections, as well as the .protective caps and the prescribedtests for tightness. Another object'of this invention is to'p'ro.- videa type of tank anchor securing means which will prevent the shearing ofthe rivets used in securing the anchor flange tothe means securing tiisflange tothe underfraine ofthecar.V r V Y Tank anchors having straightdepending anges or tins have been weld'edto tank shells before but`considerable diiiiculty has been experienced in effectingalineinentbetwe'en this anchor flange'or fin and theunderfraine of Etheycar where this method has been used. 'This yis due to the fact that ithas been found :almost impossible to lweld this flange or tin to thetank shell which will result in perfect ali-nement with the,longitudinal center line of the completed tank. Consequently,

extra working ofthe connections between This method is particularly oblstructure.

this niemberand the frame has been necessary inorderto effect thereof.

the proper alineinent A further object,l therefore, ofthis invention isto obviate this objection and provide a tank anchor welded to the tankshell which can `easily be applied and secured to the requiring eXtra:Worku-nderfranie, without ing of the connections. Y k

VOther objects vand advantages will be more apparent .to thoseskilledrin the art from the following description of the accompanyingdrawing, which i lustrates the preferred ,forni ofthe invention, thoughit is to be Linderstood that the invention is notliinited `to the exactdetails of constructionshown and de zribe'd, as it is obvious thatvariousA-niodi- V Vversely through the center sills andthe an# chainingmeans embodied in this application;

lFig. 2 is a fragmentary side elevational View showing at the uppervpartin Vsection asfraginent of the bottoni sheet ofthe tank and at thebottoni ofthe view a fragment of the upper portion ofthe center sillwiththe anchoring meansA shown in elevation;

Fig. 3 is a fragmentary plan view, parts in section taken on the linefof 'Biggi showing aLplan view of part ofr the tank anchor in sectionwith parts ybroken away, a planview of .the anchor securing means,

and .a fragmentary plan view of the centerv sill; and i Fig. 'f'i'is asectional view showingia modiiication of the attaching means 'for theanchor Referring more particularly tothe drawing and to l, 2&2 indicatethe center sillsrof an ordinary tank car underframe, which sills areordinarily spaced a conven ient distance apart and in the presentinstance are connected byfnieansvof the transversely disposed :top .sill`cover plate 3; Mountedon each side of the cover fplate 3 are anchorsecuring plates 4 and 5 having flanged inner portionsf and 7 overlappingthe cover plate 3 and downwardly projecting flanges 7a and 8 extendingover'the edges of the cover plate 3 and center sill upper flanges 9. Theplates 4 and 5 are riveted to the center sill flanges 9 by the rivets10, which pass through and also secure the cover plate 3 thereto.Mounted upon the cover plate 3 is an anchor securing plate 11 whichextends longitudinally of the underframe as shown in the plan view Fig.3. This anchor securing plate is mounted above the plates 4 and 5 andhas an upwardly extending annular flange 12 which is formed by pressingthe metal of the plat-e 11 upwardly as shown in Fig. 1 in the form of anannulus adapted to closely contact with the flange 4of the anchorstructure fullyV described. In the instance shown the annular flange 12tapers upwardly from the plate 12 as shown in Fig. 1 to snugly and,'ineffect, wedgingly engage within a depending flange 19 formed on theanchor structure as is best shown in Fig. 1 as will be hereinafter moreclearly described. Integral with plate 11 are outwardly and downwardlyextending flanges 13 which overlap the plates 4 and 5 and are rivetedthereto at 14. In order that the flanges 13 on the plate 11 may beadapted to fit in close contact with the plates 4 and 5 said flanges 13A are provided with holes 16 of sufficient size Y the upward taper offlange 12 whereby theA CIS to fit over the heads of the rivets 10`usedto secure the plates 4 and to the center sill fianges 9. Within the zoneof the anchor structure the rivets 10 are countersunk for the samepurpose as is best shown in Figs. 2 and 3.

, During the process of forming the tank a portion 18 of the tank shellis prepared by forging or welding and is connected in position as a partof the tank structure to form an anchor structure indicated generally at20, said structure 2O including the before mentioned annular Hangs 19.The inner surface of flange 19 is preferably complemental with twoflanges are, 1n effect, wedgingly inter- -fitted or engaged to preventhorizontal shifting of the tank in all directions.

It is obvious that the plate 18 or anchor structure may be connectedwith a complete cylinder by welding to the exterior thereof or it may beformed as shown in the drawing as a part of such cylinder. This plate 18has extensions 21 (shown in dotted lines in Fig. 1) which overlap withedges of the tank sheet 22. This plate, by hammer welding or by anyother suitable form of welding, is secured to the tank sheet 22, theextensions 21 assuming the form as shown in Fig. 1, and the plate 18thusforms an integral part of the tank sheet.

Y As clearly shown in Fig. 1, the integral. depending annular portion ofthel anchor l center sills.

member 19 overlaps and encloses the annular flange 12 on the plate 11 towhich it is secured by rivets 23, and thus firmly anchors the anchormember 19 and the tank sheet 22 to the center sills. It is thus seenfrom Fig. 1, and the foregoing description, that the anchor securingplate 11 forms an attaching element for securing the tank anchor memberor structure. Y19 to the sills, since the plate 11 is riveted to theplates 4 and 5 at 14 and the latter .plates are riveted to the centersill flanges 9.

While Figs. 1, 2 and 3 show the anchor structure 2O as being formed withthe tank sheet 22 whereby to form in effect an inte- .gral part of saidsheet, the anchor structure 20 may,'of` course, be welded to the outersurface of the tank shell/22 as shown clearly in Fig. 4, the weldconnection being indicated at 25.

The vcover plate 3 may be omitted if desired and inwhich case the anchorsecuring plates 4 and 5 may be combined into one plate extendingtransverselyacross the sills and forming a substitute for the plate, i

While the drawing and description shows the invention as V'applied tocenter sills formed of spaced channels,'it will be readily lapparent tothose skilled in theart that the invention can be applied to other formsof In practice, the-parts are assembled as follows: first, the'cove'rplate 3 is put in place on the upper fianges 9'of the center sills 2,both the plate and the flanges having been pun ched to receive thesecuring rivets. The anchor securing plates 4 and 5 are then assembledin place on top of the cover plate'3, these plates having also beenpunched to'receive their securing rivets. The plates 4 and 5 and thecover plate 3 are then machine riveted in position. The 'annular flange12 on the anchor securing plate 11 is next adjusted to position withinthe depending anchorfiange 19 sol that the lower flange portions 13 onthe plate 11 will be parallel tothe longitudinal axisof the tank. Theanchor securing plate 11 is thus adjusted so as to position Yits up-Vstanding flange 12 within the flange 19, the

'sila anchor securing-plate firmly to the tank after which the `tank islowered to a position where the flanges 13 of plate 11 will overlap thedepending flanges 7a and 8 whereupon the man chine rivets 15 are drivenand the tank issecured to the underframe. The tank may again bedismountedI after cutting said rivets 15. It will be obvious that due tothe annular conformation ofthe respective Ainterengaged i tion of therespective cooperating anchor l members they are-retained 1n connectedwedgingvv relation, thus tending to yaid thestalhility of the entireconstruction.

llhat is claimed is: n

l. In a. tank car, the comhination'with its center sills, ofa tankhaving an anchor structure, and means for anchoring the tank yat; saidstructure to the sills comprising an ancho platesecured to said sil-lshaving an` upward flange wedgingly interlitted. witlr the said anchorstructure and secured thereto.

ln a tank car, the comhinationwith its center sills, etV a tank havingan anchor structure, and means for anchoring the tank at saidsti-actlu-'e to the sills comprising an anchor plate connected with saidsills having an upward extension enclosed with-in saidaancl-l-onstructure and secured thereto. c

ln a tank car, the combination with its center sills, ot a tank havingan ancher strueture integral therewith, and means for anchoring' thetank at said structure tothe sills comprising an attaching clementYconnected with said sills having an annular upward ex'- tensionoverlapped h v said anchor structure and" secured thereto.

Y In a tank car, the combination with its center sills, ot a tank havingan annular anchor structure, and means for anclioring the tank at saidstructure to the sills comprising an anchor plate serving an annularupward extension extending into and secured to the anchor structure anddownward extensions connected with said sills.

5. lin a tank car, the combination with its center sills,nt a tankhaving an anchor structure integral therewith, securing means attachedto said sills, and means for anchoring the tank at said structure to thesills comyprisingan attaching element having an upward extensionextending into and secured to the anchorstructure and downward iangessecured to said securing means.

ln a tank car, thefcombination with its center sills, of a tank providedwith an anchor structure` securing means over said sills and attachedthereto, and means for `ami-horing thetank at said structure to thesills com irisiug an anchor securing` plate having an upward extensionextending into and secured te f the ancher structure and downwardextencured to the anch-or struct-ure and downward.

extensions secured to and overlapping said securing means.

S. In a tank car, the combination with its center sills havin@upperiianges, et a tank having an anchor structure integral therewith, acover plate for said flanges, securing having anjanehor structure integranchoring the tank atsaid structure tori anel'ioring thetank atsai'dstructure tothe Y sills comprising an attaching element having annpwardextension extending into a-nfdgsecured to the anchor structure anddownward extensions securedA to and overlapping ysaid .securing means.,A

9.. In a tank-car, the comhination wthits center sills having-uppertlanges, ogii aftank afl1 therewith, securing means overlapping saidtl'ar-iges and attached thereto and means toi-anchoring'the tank at saidstructure to,A prisifng an vattachingv element lraving an-ulpwardextending :tl-ange 'complementari with I and securedto thev anchorstructn' wardl-.y and vdownwardly extending .la secured toandoverlapping said' seein-mg means. f A

l() ln a tank car, the combination withzits center sills, 'of a tan-khaving fan. anchor structure integral therewith, plates overlappingsaidsills and attached thereto: and a plate for sills comprising a flangeextending upwarf'l into and secured tothe anchor structure and outwardlyand downwardly entendi ng fianges securedA toand overla'iping said.)lates ll. ln a, tank car, the combination with: its center sills havingupper flanges, of a tank having a depending` anchor structure integraltherewith, plates overlapping said sills and attached thereto, and aplatefor anchoring the tank at sald Astructure the sillsA Vcomprising aflange extending upward into said anchor structure and secured theretoand outwardly and downwardly extending iiaingesA secured to andoverlappingA said plates. 1

l2. In a tank car, the combination with its spaced center sills havingupper flangegnt a .e sills coniliti@ tank having a depending anchormember in- .tegral therewith, said member having an annular flange, acover plate for sait. sill iianges,

plates overlapping said cover'plate riveted thereto and to the said silllianges, and a plate `for anchoring the tank at said member to the sillscomprising an annular flange'extending upward into said anchorstructureand riveted thereto and outwardlyV and downwardly eX-tending' Hanges rriveted to and overlapping said'plates. 'l

13. In a tank car, the combinationwithiis center sills,'ot a tankhavingan anchor structure welded to the outside surface thereof,

and means for anchoring 'the .tank at saidstructure to the sillscomprising an attaching element secured to the sills having vanattaching iange projecting upwardly above' the top portions of the sills`and extending into and securedtothe anchor structure.v Y

.14. In a tank car, the combination with its center sills, of a tankhaving an anchor vstructure forming a part of said tank and weldedthereto, and means for anchoring-the tank at said structure to the sillscomprising an attaehing elen'ient secured to said sills havingYextensions projecting upwardly beyond the top portions of the sills andinto the said anchor structure in wedglng engagement therewith andsecured thereto.

15. In aI tank car, center sills, a tank, and cooperating members onsaid sills and tank arranged in rigidly connected wedging relation foranchoring said tank to the sills in such a manner as to prevent relativeshifting movement of the tank and sills in yall vdirec-r tions.

18. In a tank car, center sills, a tank, and means for anchoring thetank to the sills comprising cooperating complement-al members on thesills and tank respectively, said Y members being interengaged inwedging relation, and fasteners rigidly connectingsaid members. v

19. In a tank car, center sills, a tank, and means for anchoring thetank to the sills comprising cooperating annular members on the sillsand tank respectively, said members being complemental in form and beinginterengaged in connected wedging relation. K

20. In a tank car, center sills, a tank, and means for anchoring thetank to the sills comprising complementally formed annular members onsaidtank and sills respectively, said members being interlittinglyconnecting one with the other in wedging Y relation throughout theentire circumference thereof whereby to prevent sidewise shifting of thetank in all directions.

21. In a tank car, the combination with center sills, oi' a tank havingan anchor struc# ture, and means for anchoring the tank at saidstructure to said sills comprising an anchor plate supported by thesillsrand provided with a flange projecting upwardly abovethe tops oithe sills and wedgingly interlitted within the anchor structure, andfasteners connectingsaid anchor structure and anchor plate.

In witness whereof I have hereunto set my hand.V v

' CLYDE I-I.v FOLDISBEE.

